Effect of Doses and Stages of Application of Pyrazosulfuron Ethyl on Weeds in Transplanted Rice
Effect of Doses and Stages of Application of Pyrazosulfuron Ethyl on Weeds in Transplanted Rice
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发表时间：
2003
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影响因子：
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通讯作者：
N. Chopra;N. Chopra
中科院分区：
文献类型：
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作者：
N. Chopra;N. Chopra
20和25gha−-1的吡唑磺隆乙酯在移栽后3~10d施药可显著降低香附、千金子、棘豆和细叶草的杂草密度和总杂草干重。这些处理提供的粮食产量在统计上与无杂草处理相似。施药20d，除草剂药效降低，籽粒产量下降。
Pyrazosulfuron ethyl at 20 and 25 g ha−1 significantly reduced the weed density and total weed dry weight of Cyperus iria, Sphenochlea zeylanica, Echinochloa colona and Leptochloa pamica when applied 3 to 10 days after transplanting (DAT). These treatments provided grain yield statistically similar to weed free treatment. Efficacy of herbicide was reduced when applied 20 DAT resulting in less grain yield.